[x1,y1]=Bresenham(-1000,-400,1000,400);
[xx1,yy1]=Bresenham_circle(300,-200,100);
[xx3,yy3]=ellipsemid(300,400,-500,-800);
hold on;
xuanzhuan(x1,y1,60,1,0,0,1,1);
xuanzhuan(x1,y1,0,1,1000,1000,1,1);
xuanzhuan(x1,y1,60,1,1000,1000,1,1);
xuanzhuan(xx1,yy1,0,2,0,0,2,1/2);
xuanzhuan(xx3,yy3,60,2,0,0,1,1);
xuanzhuan(xx3,yy3,-60,2,0,0,1,1);
hold off;
axis equal;